ffcdcc1617
Due to an oversight, it wasn't declared as const, making it impossible to subtract from a const wxTimeSpan object. Fix this and add a unit test verifying that this compiles and works as expected. Closes #17583.
2155 lines
77 KiB
C++
2155 lines
77 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/datetime.h
|
|
// Purpose: declarations of time/date related classes (wxDateTime,
|
|
// wxTimeSpan)
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 10.02.99
|
|
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_DATETIME_H
|
|
#define _WX_DATETIME_H
|
|
|
|
#include "wx/defs.h"
|
|
|
|
#if wxUSE_DATETIME
|
|
|
|
#include <time.h>
|
|
|
|
#include <limits.h> // for INT_MIN
|
|
|
|
#include "wx/longlong.h"
|
|
#include "wx/anystr.h"
|
|
|
|
class WXDLLIMPEXP_FWD_BASE wxDateTime;
|
|
class WXDLLIMPEXP_FWD_BASE wxTimeSpan;
|
|
class WXDLLIMPEXP_FWD_BASE wxDateSpan;
|
|
#ifdef __WINDOWS__
|
|
struct _SYSTEMTIME;
|
|
#endif
|
|
|
|
#include "wx/dynarray.h"
|
|
|
|
// not all c-runtimes are based on 1/1/1970 being (time_t) 0
|
|
// set this to the corresponding value in seconds 1/1/1970 has on your
|
|
// systems c-runtime
|
|
|
|
#define WX_TIME_BASE_OFFSET 0
|
|
|
|
/*
|
|
* TODO
|
|
*
|
|
* + 1. Time zones with minutes (make TimeZone a class)
|
|
* ? 2. getdate() function like under Solaris
|
|
* + 3. text conversion for wxDateSpan
|
|
* + 4. pluggable modules for the workdays calculations
|
|
* 5. wxDateTimeHolidayAuthority for Easter and other christian feasts
|
|
*/
|
|
|
|
/*
|
|
The three (main) classes declared in this header represent:
|
|
|
|
1. An absolute moment in the time (wxDateTime)
|
|
2. A difference between two moments in the time, positive or negative
|
|
(wxTimeSpan)
|
|
3. A logical difference between two dates expressed in
|
|
years/months/weeks/days (wxDateSpan)
|
|
|
|
The following arithmetic operations are permitted (all others are not):
|
|
|
|
addition
|
|
--------
|
|
|
|
wxDateTime + wxTimeSpan = wxDateTime
|
|
wxDateTime + wxDateSpan = wxDateTime
|
|
wxTimeSpan + wxTimeSpan = wxTimeSpan
|
|
wxDateSpan + wxDateSpan = wxDateSpan
|
|
|
|
subtraction
|
|
------------
|
|
wxDateTime - wxDateTime = wxTimeSpan
|
|
wxDateTime - wxTimeSpan = wxDateTime
|
|
wxDateTime - wxDateSpan = wxDateTime
|
|
wxTimeSpan - wxTimeSpan = wxTimeSpan
|
|
wxDateSpan - wxDateSpan = wxDateSpan
|
|
|
|
multiplication
|
|
--------------
|
|
wxTimeSpan * number = wxTimeSpan
|
|
number * wxTimeSpan = wxTimeSpan
|
|
wxDateSpan * number = wxDateSpan
|
|
number * wxDateSpan = wxDateSpan
|
|
|
|
unitary minus
|
|
-------------
|
|
-wxTimeSpan = wxTimeSpan
|
|
-wxDateSpan = wxDateSpan
|
|
|
|
For each binary operation OP (+, -, *) we have the following operatorOP=() as
|
|
a method and the method with a symbolic name OPER (Add, Subtract, Multiply)
|
|
as a synonym for it and another const method with the same name which returns
|
|
the changed copy of the object and operatorOP() as a global function which is
|
|
implemented in terms of the const version of OPEN. For the unary - we have
|
|
operator-() as a method, Neg() as synonym for it and Negate() which returns
|
|
the copy of the object with the changed sign.
|
|
*/
|
|
|
|
// an invalid/default date time object which may be used as the default
|
|
// argument for arguments of type wxDateTime; it is also returned by all
|
|
// functions returning wxDateTime on failure (this is why it is also called
|
|
// wxInvalidDateTime)
|
|
class WXDLLIMPEXP_FWD_BASE wxDateTime;
|
|
|
|
extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultDateTimeFormat[];
|
|
extern WXDLLIMPEXP_DATA_BASE(const char) wxDefaultTimeSpanFormat[];
|
|
extern WXDLLIMPEXP_DATA_BASE(const wxDateTime) wxDefaultDateTime;
|
|
|
|
#define wxInvalidDateTime wxDefaultDateTime
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// conditional compilation
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// if configure detected strftime(), we have it too
|
|
#ifdef HAVE_STRFTIME
|
|
#define wxHAS_STRFTIME
|
|
// suppose everyone else has strftime
|
|
#else
|
|
#define wxHAS_STRFTIME
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime represents an absolute moment in the time
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxDateTime
|
|
{
|
|
public:
|
|
// types
|
|
// ------------------------------------------------------------------------
|
|
|
|
// a small unsigned integer type for storing things like minutes,
|
|
// seconds &c. It should be at least short (i.e. not char) to contain
|
|
// the number of milliseconds - it may also be 'int' because there is
|
|
// no size penalty associated with it in our code, we don't store any
|
|
// data in this format
|
|
typedef unsigned short wxDateTime_t;
|
|
|
|
// constants
|
|
// ------------------------------------------------------------------------
|
|
|
|
// the timezones
|
|
enum TZ
|
|
{
|
|
// the time in the current time zone
|
|
Local,
|
|
|
|
// zones from GMT (= Greenwich Mean Time): they're guaranteed to be
|
|
// consequent numbers, so writing something like `GMT0 + offset' is
|
|
// safe if abs(offset) <= 12
|
|
|
|
// underscore stands for minus
|
|
GMT_12, GMT_11, GMT_10, GMT_9, GMT_8, GMT_7,
|
|
GMT_6, GMT_5, GMT_4, GMT_3, GMT_2, GMT_1,
|
|
GMT0,
|
|
GMT1, GMT2, GMT3, GMT4, GMT5, GMT6,
|
|
GMT7, GMT8, GMT9, GMT10, GMT11, GMT12, GMT13,
|
|
// Note that GMT12 and GMT_12 are not the same: there is a difference
|
|
// of exactly one day between them
|
|
|
|
// some symbolic names for TZ
|
|
|
|
// Europe
|
|
WET = GMT0, // Western Europe Time
|
|
WEST = GMT1, // Western Europe Summer Time
|
|
CET = GMT1, // Central Europe Time
|
|
CEST = GMT2, // Central Europe Summer Time
|
|
EET = GMT2, // Eastern Europe Time
|
|
EEST = GMT3, // Eastern Europe Summer Time
|
|
MSK = GMT3, // Moscow Time
|
|
MSD = GMT4, // Moscow Summer Time
|
|
|
|
// US and Canada
|
|
AST = GMT_4, // Atlantic Standard Time
|
|
ADT = GMT_3, // Atlantic Daylight Time
|
|
EST = GMT_5, // Eastern Standard Time
|
|
EDT = GMT_4, // Eastern Daylight Saving Time
|
|
CST = GMT_6, // Central Standard Time
|
|
CDT = GMT_5, // Central Daylight Saving Time
|
|
MST = GMT_7, // Mountain Standard Time
|
|
MDT = GMT_6, // Mountain Daylight Saving Time
|
|
PST = GMT_8, // Pacific Standard Time
|
|
PDT = GMT_7, // Pacific Daylight Saving Time
|
|
HST = GMT_10, // Hawaiian Standard Time
|
|
AKST = GMT_9, // Alaska Standard Time
|
|
AKDT = GMT_8, // Alaska Daylight Saving Time
|
|
|
|
// Australia
|
|
|
|
A_WST = GMT8, // Western Standard Time
|
|
A_CST = GMT13 + 1, // Central Standard Time (+9.5)
|
|
A_EST = GMT10, // Eastern Standard Time
|
|
A_ESST = GMT11, // Eastern Summer Time
|
|
|
|
// New Zealand
|
|
NZST = GMT12, // Standard Time
|
|
NZDT = GMT13, // Daylight Saving Time
|
|
|
|
// TODO add more symbolic timezone names here
|
|
|
|
// Universal Coordinated Time = the new and politically correct name
|
|
// for GMT
|
|
UTC = GMT0
|
|
};
|
|
|
|
// the calendar systems we know about: notice that it's valid (for
|
|
// this classes purpose anyhow) to work with any of these calendars
|
|
// even with the dates before the historical appearance of the
|
|
// calendar
|
|
enum Calendar
|
|
{
|
|
Gregorian, // current calendar
|
|
Julian // calendar in use since -45 until the 1582 (or later)
|
|
|
|
// TODO Hebrew, Chinese, Maya, ... (just kidding) (or then may be not?)
|
|
};
|
|
|
|
// the country parameter is used so far for calculating the start and
|
|
// the end of DST period and for deciding whether the date is a work
|
|
// day or not
|
|
//
|
|
// TODO move this to intl.h
|
|
|
|
enum Country
|
|
{
|
|
Country_Unknown, // no special information for this country
|
|
Country_Default, // set the default country with SetCountry() method
|
|
// or use the default country with any other
|
|
|
|
// TODO add more countries (for this we must know about DST and/or
|
|
// holidays for this country)
|
|
|
|
// Western European countries: we assume that they all follow the same
|
|
// DST rules (true or false?)
|
|
Country_WesternEurope_Start,
|
|
Country_EEC = Country_WesternEurope_Start,
|
|
France,
|
|
Germany,
|
|
UK,
|
|
Country_WesternEurope_End = UK,
|
|
|
|
Russia,
|
|
USA
|
|
};
|
|
// symbolic names for the months
|
|
enum Month
|
|
{
|
|
Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec, Inv_Month
|
|
};
|
|
|
|
// symbolic names for the weekdays
|
|
enum WeekDay
|
|
{
|
|
Sun, Mon, Tue, Wed, Thu, Fri, Sat, Inv_WeekDay
|
|
};
|
|
|
|
// invalid value for the year
|
|
enum Year
|
|
{
|
|
Inv_Year = SHRT_MIN // should hold in wxDateTime_t
|
|
};
|
|
|
|
// flags for GetWeekDayName and GetMonthName
|
|
enum NameFlags
|
|
{
|
|
Name_Full = 0x01, // return full name
|
|
Name_Abbr = 0x02 // return abbreviated name
|
|
};
|
|
|
|
// flags for GetWeekOfYear and GetWeekOfMonth
|
|
enum WeekFlags
|
|
{
|
|
Default_First, // Sunday_First for US, Monday_First for the rest
|
|
Monday_First, // week starts with a Monday
|
|
Sunday_First // week starts with a Sunday
|
|
};
|
|
|
|
// helper classes
|
|
// ------------------------------------------------------------------------
|
|
|
|
// a class representing a time zone: basically, this is just an offset
|
|
// (in seconds) from GMT
|
|
class WXDLLIMPEXP_BASE TimeZone
|
|
{
|
|
public:
|
|
TimeZone(TZ tz);
|
|
|
|
// create time zone object with the given offset
|
|
TimeZone(long offset = 0) { m_offset = offset; }
|
|
|
|
static TimeZone Make(long offset)
|
|
{
|
|
TimeZone tz;
|
|
tz.m_offset = offset;
|
|
return tz;
|
|
}
|
|
|
|
long GetOffset() const { return m_offset; }
|
|
|
|
private:
|
|
// offset for this timezone from GMT in seconds
|
|
long m_offset;
|
|
};
|
|
|
|
// standard struct tm is limited to the years from 1900 (because
|
|
// tm_year field is the offset from 1900), so we use our own struct
|
|
// instead to represent broken down time
|
|
//
|
|
// NB: this struct should always be kept normalized (i.e. mon should
|
|
// be < 12, 1 <= day <= 31 &c), so use AddMonths(), AddDays()
|
|
// instead of modifying the member fields directly!
|
|
struct WXDLLIMPEXP_BASE Tm
|
|
{
|
|
wxDateTime_t msec, sec, min, hour,
|
|
mday, // Day of the month in 1..31 range.
|
|
yday; // Day of the year in 0..365 range.
|
|
Month mon;
|
|
int year;
|
|
|
|
// default ctor inits the object to an invalid value
|
|
Tm();
|
|
|
|
// ctor from struct tm and the timezone
|
|
Tm(const struct tm& tm, const TimeZone& tz);
|
|
|
|
// check that the given date/time is valid (in Gregorian calendar)
|
|
bool IsValid() const;
|
|
|
|
// get the week day
|
|
WeekDay GetWeekDay() // not const because wday may be changed
|
|
{
|
|
if ( wday == Inv_WeekDay )
|
|
ComputeWeekDay();
|
|
|
|
return (WeekDay)wday;
|
|
}
|
|
|
|
// add the given number of months to the date keeping it normalized
|
|
void AddMonths(int monDiff);
|
|
|
|
// add the given number of months to the date keeping it normalized
|
|
void AddDays(int dayDiff);
|
|
|
|
private:
|
|
// compute the weekday from other fields
|
|
void ComputeWeekDay();
|
|
|
|
// the timezone we correspond to
|
|
TimeZone m_tz;
|
|
|
|
// This value can only be accessed via GetWeekDay() and not directly
|
|
// because it's not always computed when creating this object and may
|
|
// need to be calculated on demand.
|
|
wxDateTime_t wday;
|
|
};
|
|
|
|
// static methods
|
|
// ------------------------------------------------------------------------
|
|
|
|
// set the current country
|
|
static void SetCountry(Country country);
|
|
// get the current country
|
|
static Country GetCountry();
|
|
|
|
// return true if the country is a West European one (in practice,
|
|
// this means that the same DST rules as for EEC apply)
|
|
static bool IsWestEuropeanCountry(Country country = Country_Default);
|
|
|
|
// return the current year
|
|
static int GetCurrentYear(Calendar cal = Gregorian);
|
|
|
|
// convert the year as returned by wxDateTime::GetYear() to a year
|
|
// suitable for BC/AD notation. The difference is that BC year 1
|
|
// corresponds to the year 0 (while BC year 0 didn't exist) and AD
|
|
// year N is just year N.
|
|
static int ConvertYearToBC(int year);
|
|
|
|
// return the current month
|
|
static Month GetCurrentMonth(Calendar cal = Gregorian);
|
|
|
|
// returns true if the given year is a leap year in the given calendar
|
|
static bool IsLeapYear(int year = Inv_Year, Calendar cal = Gregorian);
|
|
|
|
// get the century (19 for 1999, 20 for 2000 and -5 for 492 BC)
|
|
static int GetCentury(int year);
|
|
|
|
// returns the number of days in this year (356 or 355 for Gregorian
|
|
// calendar usually :-)
|
|
static wxDateTime_t GetNumberOfDays(int year, Calendar cal = Gregorian);
|
|
|
|
// get the number of the days in the given month (default value for
|
|
// the year means the current one)
|
|
static wxDateTime_t GetNumberOfDays(Month month,
|
|
int year = Inv_Year,
|
|
Calendar cal = Gregorian);
|
|
|
|
|
|
// get the full (default) or abbreviated month name in the current
|
|
// locale, returns empty string on error
|
|
static wxString GetMonthName(Month month,
|
|
NameFlags flags = Name_Full);
|
|
|
|
// get the standard English full (default) or abbreviated month name
|
|
static wxString GetEnglishMonthName(Month month,
|
|
NameFlags flags = Name_Full);
|
|
|
|
// get the full (default) or abbreviated weekday name in the current
|
|
// locale, returns empty string on error
|
|
static wxString GetWeekDayName(WeekDay weekday,
|
|
NameFlags flags = Name_Full);
|
|
|
|
// get the standard English full (default) or abbreviated weekday name
|
|
static wxString GetEnglishWeekDayName(WeekDay weekday,
|
|
NameFlags flags = Name_Full);
|
|
|
|
// get the AM and PM strings in the current locale (may be empty)
|
|
static void GetAmPmStrings(wxString *am, wxString *pm);
|
|
|
|
// return true if the given country uses DST for this year
|
|
static bool IsDSTApplicable(int year = Inv_Year,
|
|
Country country = Country_Default);
|
|
|
|
// get the beginning of DST for this year, will return invalid object
|
|
// if no DST applicable in this year. The default value of the
|
|
// parameter means to take the current year.
|
|
static wxDateTime GetBeginDST(int year = Inv_Year,
|
|
Country country = Country_Default);
|
|
// get the end of DST for this year, will return invalid object
|
|
// if no DST applicable in this year. The default value of the
|
|
// parameter means to take the current year.
|
|
static wxDateTime GetEndDST(int year = Inv_Year,
|
|
Country country = Country_Default);
|
|
|
|
// return the wxDateTime object for the current time
|
|
static inline wxDateTime Now();
|
|
|
|
// return the wxDateTime object for the current time with millisecond
|
|
// precision (if available on this platform)
|
|
static wxDateTime UNow();
|
|
|
|
// return the wxDateTime object for today midnight: i.e. as Now() but
|
|
// with time set to 0
|
|
static inline wxDateTime Today();
|
|
|
|
// constructors: you should test whether the constructor succeeded with
|
|
// IsValid() function. The values Inv_Month and Inv_Year for the
|
|
// parameters mean take current month and/or year values.
|
|
// ------------------------------------------------------------------------
|
|
|
|
// default ctor does not initialize the object, use Set()!
|
|
wxDateTime() { m_time = wxINT64_MIN; }
|
|
|
|
// from time_t: seconds since the Epoch 00:00:00 UTC, Jan 1, 1970)
|
|
inline wxDateTime(time_t timet);
|
|
// from broken down time/date (only for standard Unix range)
|
|
inline wxDateTime(const struct tm& tm);
|
|
// from broken down time/date (any range)
|
|
inline wxDateTime(const Tm& tm);
|
|
|
|
// from JDN (beware of rounding errors)
|
|
inline wxDateTime(double jdn);
|
|
|
|
// from separate values for each component, date set to today
|
|
inline wxDateTime(wxDateTime_t hour,
|
|
wxDateTime_t minute = 0,
|
|
wxDateTime_t second = 0,
|
|
wxDateTime_t millisec = 0);
|
|
// from separate values for each component with explicit date
|
|
inline wxDateTime(wxDateTime_t day, // day of the month
|
|
Month month,
|
|
int year = Inv_Year, // 1999, not 99 please!
|
|
wxDateTime_t hour = 0,
|
|
wxDateTime_t minute = 0,
|
|
wxDateTime_t second = 0,
|
|
wxDateTime_t millisec = 0);
|
|
#ifdef __WINDOWS__
|
|
wxDateTime(const struct _SYSTEMTIME& st)
|
|
{
|
|
SetFromMSWSysTime(st);
|
|
}
|
|
#endif
|
|
|
|
// default copy ctor ok
|
|
|
|
// no dtor
|
|
|
|
// assignment operators and Set() functions: all non const methods return
|
|
// the reference to this object. IsValid() should be used to test whether
|
|
// the function succeeded.
|
|
// ------------------------------------------------------------------------
|
|
|
|
// set to the current time
|
|
inline wxDateTime& SetToCurrent();
|
|
|
|
// set to given time_t value
|
|
inline wxDateTime& Set(time_t timet);
|
|
|
|
// set to given broken down time/date
|
|
wxDateTime& Set(const struct tm& tm);
|
|
|
|
// set to given broken down time/date
|
|
inline wxDateTime& Set(const Tm& tm);
|
|
|
|
// set to given JDN (beware of rounding errors)
|
|
wxDateTime& Set(double jdn);
|
|
|
|
// set to given time, date = today
|
|
wxDateTime& Set(wxDateTime_t hour,
|
|
wxDateTime_t minute = 0,
|
|
wxDateTime_t second = 0,
|
|
wxDateTime_t millisec = 0);
|
|
|
|
// from separate values for each component with explicit date
|
|
// (defaults for month and year are the current values)
|
|
wxDateTime& Set(wxDateTime_t day,
|
|
Month month,
|
|
int year = Inv_Year, // 1999, not 99 please!
|
|
wxDateTime_t hour = 0,
|
|
wxDateTime_t minute = 0,
|
|
wxDateTime_t second = 0,
|
|
wxDateTime_t millisec = 0);
|
|
|
|
// resets time to 00:00:00, doesn't change the date
|
|
wxDateTime& ResetTime();
|
|
|
|
// get the date part of this object only, i.e. the object which has the
|
|
// same date as this one but time of 00:00:00
|
|
wxDateTime GetDateOnly() const;
|
|
|
|
// the following functions don't change the values of the other
|
|
// fields, i.e. SetMinute() won't change either hour or seconds value
|
|
|
|
// set the year
|
|
wxDateTime& SetYear(int year);
|
|
// set the month
|
|
wxDateTime& SetMonth(Month month);
|
|
// set the day of the month
|
|
wxDateTime& SetDay(wxDateTime_t day);
|
|
// set hour
|
|
wxDateTime& SetHour(wxDateTime_t hour);
|
|
// set minute
|
|
wxDateTime& SetMinute(wxDateTime_t minute);
|
|
// set second
|
|
wxDateTime& SetSecond(wxDateTime_t second);
|
|
// set millisecond
|
|
wxDateTime& SetMillisecond(wxDateTime_t millisecond);
|
|
|
|
// assignment operator from time_t
|
|
wxDateTime& operator=(time_t timet) { return Set(timet); }
|
|
|
|
// assignment operator from broken down time/date
|
|
wxDateTime& operator=(const struct tm& tm) { return Set(tm); }
|
|
|
|
// assignment operator from broken down time/date
|
|
wxDateTime& operator=(const Tm& tm) { return Set(tm); }
|
|
|
|
// default assignment operator is ok
|
|
|
|
// calendar calculations (functions which set the date only leave the time
|
|
// unchanged, e.g. don't explicitly zero it): SetXXX() functions modify the
|
|
// object itself, GetXXX() ones return a new object.
|
|
// ------------------------------------------------------------------------
|
|
|
|
// set to the given week day in the same week as this one
|
|
wxDateTime& SetToWeekDayInSameWeek(WeekDay weekday,
|
|
WeekFlags flags = Monday_First);
|
|
inline wxDateTime GetWeekDayInSameWeek(WeekDay weekday,
|
|
WeekFlags flags = Monday_First) const;
|
|
|
|
// set to the next week day following this one
|
|
wxDateTime& SetToNextWeekDay(WeekDay weekday);
|
|
inline wxDateTime GetNextWeekDay(WeekDay weekday) const;
|
|
|
|
// set to the previous week day before this one
|
|
wxDateTime& SetToPrevWeekDay(WeekDay weekday);
|
|
inline wxDateTime GetPrevWeekDay(WeekDay weekday) const;
|
|
|
|
// set to Nth occurrence of given weekday in the given month of the
|
|
// given year (time is set to 0), return true on success and false on
|
|
// failure. n may be positive (1..5) or negative to count from the end
|
|
// of the month (see helper function SetToLastWeekDay())
|
|
bool SetToWeekDay(WeekDay weekday,
|
|
int n = 1,
|
|
Month month = Inv_Month,
|
|
int year = Inv_Year);
|
|
inline wxDateTime GetWeekDay(WeekDay weekday,
|
|
int n = 1,
|
|
Month month = Inv_Month,
|
|
int year = Inv_Year) const;
|
|
|
|
// sets to the last weekday in the given month, year
|
|
inline bool SetToLastWeekDay(WeekDay weekday,
|
|
Month month = Inv_Month,
|
|
int year = Inv_Year);
|
|
inline wxDateTime GetLastWeekDay(WeekDay weekday,
|
|
Month month = Inv_Month,
|
|
int year = Inv_Year);
|
|
|
|
// returns the date corresponding to the given week day of the given
|
|
// week (in ISO notation) of the specified year
|
|
static wxDateTime SetToWeekOfYear(int year,
|
|
wxDateTime_t numWeek,
|
|
WeekDay weekday = Mon);
|
|
|
|
// sets the date to the last day of the given (or current) month or the
|
|
// given (or current) year
|
|
wxDateTime& SetToLastMonthDay(Month month = Inv_Month,
|
|
int year = Inv_Year);
|
|
inline wxDateTime GetLastMonthDay(Month month = Inv_Month,
|
|
int year = Inv_Year) const;
|
|
|
|
// sets to the given year day (1..365 or 366)
|
|
wxDateTime& SetToYearDay(wxDateTime_t yday);
|
|
inline wxDateTime GetYearDay(wxDateTime_t yday) const;
|
|
|
|
// The definitions below were taken verbatim from
|
|
//
|
|
// http://www.capecod.net/~pbaum/date/date0.htm
|
|
//
|
|
// (Peter Baum's home page)
|
|
//
|
|
// definition: The Julian Day Number, Julian Day, or JD of a
|
|
// particular instant of time is the number of days and fractions of a
|
|
// day since 12 hours Universal Time (Greenwich mean noon) on January
|
|
// 1 of the year -4712, where the year is given in the Julian
|
|
// proleptic calendar. The idea of using this reference date was
|
|
// originally proposed by Joseph Scalizer in 1582 to count years but
|
|
// it was modified by 19th century astronomers to count days. One
|
|
// could have equivalently defined the reference time to be noon of
|
|
// November 24, -4713 if were understood that Gregorian calendar rules
|
|
// were applied. Julian days are Julian Day Numbers and are not to be
|
|
// confused with Julian dates.
|
|
//
|
|
// definition: The Rata Die number is a date specified as the number
|
|
// of days relative to a base date of December 31 of the year 0. Thus
|
|
// January 1 of the year 1 is Rata Die day 1.
|
|
|
|
// get the Julian Day number (the fractional part specifies the time of
|
|
// the day, related to noon - beware of rounding errors!)
|
|
double GetJulianDayNumber() const;
|
|
double GetJDN() const { return GetJulianDayNumber(); }
|
|
|
|
// get the Modified Julian Day number: it is equal to JDN - 2400000.5
|
|
// and so integral MJDs correspond to the midnights (and not noons).
|
|
// MJD 0 is Nov 17, 1858
|
|
double GetModifiedJulianDayNumber() const { return GetJDN() - 2400000.5; }
|
|
double GetMJD() const { return GetModifiedJulianDayNumber(); }
|
|
|
|
// get the Rata Die number
|
|
double GetRataDie() const;
|
|
|
|
// TODO algorithms for calculating some important dates, such as
|
|
// religious holidays (Easter...) or moon/solar eclipses? Some
|
|
// algorithms can be found in the calendar FAQ
|
|
|
|
|
|
// Timezone stuff: a wxDateTime object constructed using given
|
|
// day/month/year/hour/min/sec values is interpreted as this moment in
|
|
// local time. Using the functions below, it may be converted to another
|
|
// time zone (e.g., the Unix epoch is wxDateTime(1, Jan, 1970).ToGMT()).
|
|
//
|
|
// These functions try to handle DST internally, but there is no magical
|
|
// way to know all rules for it in all countries in the world, so if the
|
|
// program can handle it itself (or doesn't want to handle it at all for
|
|
// whatever reason), the DST handling can be disabled with noDST.
|
|
// ------------------------------------------------------------------------
|
|
|
|
// transform to any given timezone
|
|
inline wxDateTime ToTimezone(const TimeZone& tz, bool noDST = false) const;
|
|
wxDateTime& MakeTimezone(const TimeZone& tz, bool noDST = false);
|
|
|
|
// interpret current value as being in another timezone and transform
|
|
// it to local one
|
|
inline wxDateTime FromTimezone(const TimeZone& tz, bool noDST = false) const;
|
|
wxDateTime& MakeFromTimezone(const TimeZone& tz, bool noDST = false);
|
|
|
|
// transform to/from GMT/UTC
|
|
wxDateTime ToUTC(bool noDST = false) const { return ToTimezone(UTC, noDST); }
|
|
wxDateTime& MakeUTC(bool noDST = false) { return MakeTimezone(UTC, noDST); }
|
|
|
|
wxDateTime ToGMT(bool noDST = false) const { return ToUTC(noDST); }
|
|
wxDateTime& MakeGMT(bool noDST = false) { return MakeUTC(noDST); }
|
|
|
|
wxDateTime FromUTC(bool noDST = false) const
|
|
{ return FromTimezone(UTC, noDST); }
|
|
wxDateTime& MakeFromUTC(bool noDST = false)
|
|
{ return MakeFromTimezone(UTC, noDST); }
|
|
|
|
// is daylight savings time in effect at this moment according to the
|
|
// rules of the specified country?
|
|
//
|
|
// Return value is > 0 if DST is in effect, 0 if it is not and -1 if
|
|
// the information is not available (this is compatible with ANSI C)
|
|
int IsDST(Country country = Country_Default) const;
|
|
|
|
|
|
// accessors: many of them take the timezone parameter which indicates the
|
|
// timezone for which to make the calculations and the default value means
|
|
// to do it for the current timezone of this machine (even if the function
|
|
// only operates with the date it's necessary because a date may wrap as
|
|
// result of timezone shift)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// is the date valid?
|
|
inline bool IsValid() const { return m_time != wxLongLong(wxINT64_MIN); }
|
|
|
|
// get the broken down date/time representation in the given timezone
|
|
//
|
|
// If you wish to get several time components (day, month and year),
|
|
// consider getting the whole Tm strcuture first and retrieving the
|
|
// value from it - this is much more efficient
|
|
Tm GetTm(const TimeZone& tz = Local) const;
|
|
|
|
// get the number of seconds since the Unix epoch - returns (time_t)-1
|
|
// if the value is out of range
|
|
inline time_t GetTicks() const;
|
|
|
|
// get the century, same as GetCentury(GetYear())
|
|
int GetCentury(const TimeZone& tz = Local) const
|
|
{ return GetCentury(GetYear(tz)); }
|
|
// get the year (returns Inv_Year if date is invalid)
|
|
int GetYear(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).year; }
|
|
// get the month (Inv_Month if date is invalid)
|
|
Month GetMonth(const TimeZone& tz = Local) const
|
|
{ return (Month)GetTm(tz).mon; }
|
|
// get the month day (in 1..31 range, 0 if date is invalid)
|
|
wxDateTime_t GetDay(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).mday; }
|
|
// get the day of the week (Inv_WeekDay if date is invalid)
|
|
WeekDay GetWeekDay(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).GetWeekDay(); }
|
|
// get the hour of the day
|
|
wxDateTime_t GetHour(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).hour; }
|
|
// get the minute
|
|
wxDateTime_t GetMinute(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).min; }
|
|
// get the second
|
|
wxDateTime_t GetSecond(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).sec; }
|
|
// get milliseconds
|
|
wxDateTime_t GetMillisecond(const TimeZone& tz = Local) const
|
|
{ return GetTm(tz).msec; }
|
|
|
|
// get the day since the year start (1..366, 0 if date is invalid)
|
|
wxDateTime_t GetDayOfYear(const TimeZone& tz = Local) const;
|
|
// get the week number since the year start (1..52 or 53, 0 if date is
|
|
// invalid)
|
|
wxDateTime_t GetWeekOfYear(WeekFlags flags = Monday_First,
|
|
const TimeZone& tz = Local) const;
|
|
// get the year to which the number returned from GetWeekOfYear()
|
|
// belongs
|
|
int GetWeekBasedYear(const TimeZone& tz = Local) const;
|
|
// get the week number since the month start (1..5, 0 if date is
|
|
// invalid)
|
|
wxDateTime_t GetWeekOfMonth(WeekFlags flags = Monday_First,
|
|
const TimeZone& tz = Local) const;
|
|
|
|
// is this date a work day? This depends on a country, of course,
|
|
// because the holidays are different in different countries
|
|
bool IsWorkDay(Country country = Country_Default) const;
|
|
|
|
// dos date and time format
|
|
// ------------------------------------------------------------------------
|
|
|
|
// set from the DOS packed format
|
|
wxDateTime& SetFromDOS(unsigned long ddt);
|
|
|
|
// pack the date in DOS format
|
|
unsigned long GetAsDOS() const;
|
|
|
|
// SYSTEMTIME format
|
|
// ------------------------------------------------------------------------
|
|
#ifdef __WINDOWS__
|
|
// convert SYSTEMTIME to wxDateTime
|
|
wxDateTime& SetFromMSWSysTime(const struct _SYSTEMTIME& st);
|
|
|
|
// convert wxDateTime to SYSTEMTIME
|
|
void GetAsMSWSysTime(struct _SYSTEMTIME* st) const;
|
|
|
|
// same as above but only take date part into account, time is always zero
|
|
wxDateTime& SetFromMSWSysDate(const struct _SYSTEMTIME& st);
|
|
void GetAsMSWSysDate(struct _SYSTEMTIME* st) const;
|
|
#endif // __WINDOWS__
|
|
|
|
// comparison (see also functions below for operator versions)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// returns true if the two moments are strictly identical
|
|
inline bool IsEqualTo(const wxDateTime& datetime) const;
|
|
|
|
// returns true if the date is strictly earlier than the given one
|
|
inline bool IsEarlierThan(const wxDateTime& datetime) const;
|
|
|
|
// returns true if the date is strictly later than the given one
|
|
inline bool IsLaterThan(const wxDateTime& datetime) const;
|
|
|
|
// returns true if the date is strictly in the given range
|
|
inline bool IsStrictlyBetween(const wxDateTime& t1,
|
|
const wxDateTime& t2) const;
|
|
|
|
// returns true if the date is in the given range
|
|
inline bool IsBetween(const wxDateTime& t1, const wxDateTime& t2) const;
|
|
|
|
// do these two objects refer to the same date?
|
|
inline bool IsSameDate(const wxDateTime& dt) const;
|
|
|
|
// do these two objects have the same time?
|
|
inline bool IsSameTime(const wxDateTime& dt) const;
|
|
|
|
// are these two objects equal up to given timespan?
|
|
inline bool IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const;
|
|
|
|
inline bool operator<(const wxDateTime& dt) const
|
|
{
|
|
return GetValue() < dt.GetValue();
|
|
}
|
|
|
|
inline bool operator<=(const wxDateTime& dt) const
|
|
{
|
|
return GetValue() <= dt.GetValue();
|
|
}
|
|
|
|
inline bool operator>(const wxDateTime& dt) const
|
|
{
|
|
return GetValue() > dt.GetValue();
|
|
}
|
|
|
|
inline bool operator>=(const wxDateTime& dt) const
|
|
{
|
|
return GetValue() >= dt.GetValue();
|
|
}
|
|
|
|
inline bool operator==(const wxDateTime& dt) const
|
|
{
|
|
// Intentionally do not call GetValue() here, in order that
|
|
// invalid wxDateTimes may be compared for equality
|
|
return m_time == dt.m_time;
|
|
}
|
|
|
|
inline bool operator!=(const wxDateTime& dt) const
|
|
{
|
|
// As above, don't use GetValue() here.
|
|
return m_time != dt.m_time;
|
|
}
|
|
|
|
// arithmetics with dates (see also below for more operators)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// return the sum of the date with a time span (positive or negative)
|
|
inline wxDateTime Add(const wxTimeSpan& diff) const;
|
|
// add a time span (positive or negative)
|
|
inline wxDateTime& Add(const wxTimeSpan& diff);
|
|
// add a time span (positive or negative)
|
|
inline wxDateTime& operator+=(const wxTimeSpan& diff);
|
|
inline wxDateTime operator+(const wxTimeSpan& ts) const
|
|
{
|
|
wxDateTime dt(*this);
|
|
dt.Add(ts);
|
|
return dt;
|
|
}
|
|
|
|
// return the difference of the date with a time span
|
|
inline wxDateTime Subtract(const wxTimeSpan& diff) const;
|
|
// subtract a time span (positive or negative)
|
|
inline wxDateTime& Subtract(const wxTimeSpan& diff);
|
|
// subtract a time span (positive or negative)
|
|
inline wxDateTime& operator-=(const wxTimeSpan& diff);
|
|
inline wxDateTime operator-(const wxTimeSpan& ts) const
|
|
{
|
|
wxDateTime dt(*this);
|
|
dt.Subtract(ts);
|
|
return dt;
|
|
}
|
|
|
|
// return the sum of the date with a date span
|
|
inline wxDateTime Add(const wxDateSpan& diff) const;
|
|
// add a date span (positive or negative)
|
|
wxDateTime& Add(const wxDateSpan& diff);
|
|
// add a date span (positive or negative)
|
|
inline wxDateTime& operator+=(const wxDateSpan& diff);
|
|
inline wxDateTime operator+(const wxDateSpan& ds) const
|
|
{
|
|
wxDateTime dt(*this);
|
|
dt.Add(ds);
|
|
return dt;
|
|
}
|
|
|
|
// return the difference of the date with a date span
|
|
inline wxDateTime Subtract(const wxDateSpan& diff) const;
|
|
// subtract a date span (positive or negative)
|
|
inline wxDateTime& Subtract(const wxDateSpan& diff);
|
|
// subtract a date span (positive or negative)
|
|
inline wxDateTime& operator-=(const wxDateSpan& diff);
|
|
inline wxDateTime operator-(const wxDateSpan& ds) const
|
|
{
|
|
wxDateTime dt(*this);
|
|
dt.Subtract(ds);
|
|
return dt;
|
|
}
|
|
|
|
// return the difference between two dates
|
|
inline wxTimeSpan Subtract(const wxDateTime& dt) const;
|
|
inline wxTimeSpan operator-(const wxDateTime& dt2) const;
|
|
|
|
wxDateSpan DiffAsDateSpan(const wxDateTime& dt) const;
|
|
|
|
// conversion to/from text
|
|
// ------------------------------------------------------------------------
|
|
|
|
// all conversions functions return true to indicate whether parsing
|
|
// succeeded or failed and fill in the provided end iterator, which must
|
|
// not be NULL, with the location of the character where the parsing
|
|
// stopped (this will be end() of the passed string if everything was
|
|
// parsed)
|
|
|
|
// parse a string in RFC 822 format (found e.g. in mail headers and
|
|
// having the form "Wed, 10 Feb 1999 19:07:07 +0100")
|
|
bool ParseRfc822Date(const wxString& date,
|
|
wxString::const_iterator *end);
|
|
|
|
// parse a date/time in the given format (see strptime(3)), fill in
|
|
// the missing (in the string) fields with the values of dateDef (by
|
|
// default, they will not change if they had valid values or will
|
|
// default to Today() otherwise)
|
|
bool ParseFormat(const wxString& date,
|
|
const wxString& format,
|
|
const wxDateTime& dateDef,
|
|
wxString::const_iterator *end);
|
|
|
|
bool ParseFormat(const wxString& date,
|
|
const wxString& format,
|
|
wxString::const_iterator *end)
|
|
{
|
|
return ParseFormat(date, format, wxDefaultDateTime, end);
|
|
}
|
|
|
|
bool ParseFormat(const wxString& date,
|
|
wxString::const_iterator *end)
|
|
{
|
|
return ParseFormat(date, wxDefaultDateTimeFormat, wxDefaultDateTime, end);
|
|
}
|
|
|
|
// parse a string containing date, time or both in ISO 8601 format
|
|
//
|
|
// notice that these functions are new in wx 3.0 and so we don't
|
|
// provide compatibility overloads for them
|
|
bool ParseISODate(const wxString& date)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseFormat(date, wxS("%Y-%m-%d"), &end) && end == date.end();
|
|
}
|
|
|
|
bool ParseISOTime(const wxString& time)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseFormat(time, wxS("%H:%M:%S"), &end) && end == time.end();
|
|
}
|
|
|
|
bool ParseISOCombined(const wxString& datetime, char sep = 'T')
|
|
{
|
|
wxString::const_iterator end;
|
|
const wxString fmt = wxS("%Y-%m-%d") + wxString(sep) + wxS("%H:%M:%S");
|
|
return ParseFormat(datetime, fmt, &end) && end == datetime.end();
|
|
}
|
|
|
|
// parse a string containing the date/time in "free" format, this
|
|
// function will try to make an educated guess at the string contents
|
|
bool ParseDateTime(const wxString& datetime,
|
|
wxString::const_iterator *end);
|
|
|
|
// parse a string containing the date only in "free" format (less
|
|
// flexible than ParseDateTime)
|
|
bool ParseDate(const wxString& date,
|
|
wxString::const_iterator *end);
|
|
|
|
// parse a string containing the time only in "free" format
|
|
bool ParseTime(const wxString& time,
|
|
wxString::const_iterator *end);
|
|
|
|
|
|
// this function accepts strftime()-like format string (default
|
|
// argument corresponds to the preferred date and time representation
|
|
// for the current locale) and returns the string containing the
|
|
// resulting text representation
|
|
wxString Format(const wxString& format = wxDefaultDateTimeFormat,
|
|
const TimeZone& tz = Local) const;
|
|
// preferred date representation for the current locale
|
|
wxString FormatDate() const { return Format(wxS("%x")); }
|
|
// preferred time representation for the current locale
|
|
wxString FormatTime() const { return Format(wxS("%X")); }
|
|
// returns the string representing the date in ISO 8601 format
|
|
// (YYYY-MM-DD)
|
|
wxString FormatISODate() const { return Format(wxS("%Y-%m-%d")); }
|
|
// returns the string representing the time in ISO 8601 format
|
|
// (HH:MM:SS)
|
|
wxString FormatISOTime() const { return Format(wxS("%H:%M:%S")); }
|
|
// return the combined date time representation in ISO 8601 format; the
|
|
// separator character should be 'T' according to the standard but it
|
|
// can also be useful to set it to ' '
|
|
wxString FormatISOCombined(char sep = 'T') const
|
|
{ return FormatISODate() + sep + FormatISOTime(); }
|
|
|
|
|
|
// backwards compatible versions of the parsing functions: they return an
|
|
// object representing the next character following the date specification
|
|
// (i.e. the one where the scan had to stop) or a special NULL-like object
|
|
// on failure
|
|
//
|
|
// they're not deprecated because a lot of existing code uses them and
|
|
// there is no particular harm in keeping them but you should still prefer
|
|
// the versions above in the new code
|
|
wxAnyStrPtr ParseRfc822Date(const wxString& date)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseRfc822Date(date, &end) ? wxAnyStrPtr(date, end)
|
|
: wxAnyStrPtr();
|
|
}
|
|
|
|
wxAnyStrPtr ParseFormat(const wxString& date,
|
|
const wxString& format = wxDefaultDateTimeFormat,
|
|
const wxDateTime& dateDef = wxDefaultDateTime)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseFormat(date, format, dateDef, &end) ? wxAnyStrPtr(date, end)
|
|
: wxAnyStrPtr();
|
|
}
|
|
|
|
wxAnyStrPtr ParseDateTime(const wxString& datetime)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseDateTime(datetime, &end) ? wxAnyStrPtr(datetime, end)
|
|
: wxAnyStrPtr();
|
|
}
|
|
|
|
wxAnyStrPtr ParseDate(const wxString& date)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseDate(date, &end) ? wxAnyStrPtr(date, end)
|
|
: wxAnyStrPtr();
|
|
}
|
|
|
|
wxAnyStrPtr ParseTime(const wxString& time)
|
|
{
|
|
wxString::const_iterator end;
|
|
return ParseTime(time, &end) ? wxAnyStrPtr(time, end)
|
|
: wxAnyStrPtr();
|
|
}
|
|
|
|
// In addition to wxAnyStrPtr versions above we also must provide the
|
|
// overloads for C strings as we must return a pointer into the original
|
|
// string and not inside a temporary wxString which would have been created
|
|
// if the overloads above were used.
|
|
//
|
|
// And then we also have to provide the overloads for wxCStrData, as usual.
|
|
// Unfortunately those ones can't return anything as we don't have any
|
|
// sufficiently long-lived wxAnyStrPtr to return from them: any temporary
|
|
// strings it would point to would be destroyed when this function returns
|
|
// making it impossible to dereference the return value. So we just don't
|
|
// return anything from here which at least allows to keep compatibility
|
|
// with the code not testing the return value. Other uses of this method
|
|
// need to be converted to use one of the new bool-returning overloads
|
|
// above.
|
|
void ParseRfc822Date(const wxCStrData& date)
|
|
{ ParseRfc822Date(wxString(date)); }
|
|
const char* ParseRfc822Date(const char* date);
|
|
const wchar_t* ParseRfc822Date(const wchar_t* date);
|
|
|
|
void ParseFormat(const wxCStrData& date,
|
|
const wxString& format = wxDefaultDateTimeFormat,
|
|
const wxDateTime& dateDef = wxDefaultDateTime)
|
|
{ ParseFormat(wxString(date), format, dateDef); }
|
|
const char* ParseFormat(const char* date,
|
|
const wxString& format = wxDefaultDateTimeFormat,
|
|
const wxDateTime& dateDef = wxDefaultDateTime);
|
|
const wchar_t* ParseFormat(const wchar_t* date,
|
|
const wxString& format = wxDefaultDateTimeFormat,
|
|
const wxDateTime& dateDef = wxDefaultDateTime);
|
|
|
|
void ParseDateTime(const wxCStrData& datetime)
|
|
{ ParseDateTime(wxString(datetime)); }
|
|
const char* ParseDateTime(const char* datetime);
|
|
const wchar_t* ParseDateTime(const wchar_t* datetime);
|
|
|
|
void ParseDate(const wxCStrData& date)
|
|
{ ParseDate(wxString(date)); }
|
|
const char* ParseDate(const char* date);
|
|
const wchar_t* ParseDate(const wchar_t* date);
|
|
|
|
void ParseTime(const wxCStrData& time)
|
|
{ ParseTime(wxString(time)); }
|
|
const char* ParseTime(const char* time);
|
|
const wchar_t* ParseTime(const wchar_t* time);
|
|
|
|
|
|
// implementation
|
|
// ------------------------------------------------------------------------
|
|
|
|
// construct from internal representation
|
|
wxDateTime(const wxLongLong& time) { m_time = time; }
|
|
|
|
// get the internal representation
|
|
inline wxLongLong GetValue() const;
|
|
|
|
// a helper function to get the current time_t
|
|
static time_t GetTimeNow() { return time(NULL); }
|
|
|
|
// another one to get the current time broken down
|
|
static struct tm *GetTmNow()
|
|
{
|
|
static struct tm l_CurrentTime;
|
|
return GetTmNow(&l_CurrentTime);
|
|
}
|
|
|
|
// get current time using thread-safe function
|
|
static struct tm *GetTmNow(struct tm *tmstruct);
|
|
|
|
private:
|
|
// the current country - as it's the same for all program objects (unless
|
|
// it runs on a _really_ big cluster system :-), this is a static member:
|
|
// see SetCountry() and GetCountry()
|
|
static Country ms_country;
|
|
|
|
// this constant is used to transform a time_t value to the internal
|
|
// representation, as time_t is in seconds and we use milliseconds it's
|
|
// fixed to 1000
|
|
static const long TIME_T_FACTOR;
|
|
|
|
// returns true if we fall in range in which we can use standard ANSI C
|
|
// functions
|
|
inline bool IsInStdRange() const;
|
|
|
|
// the internal representation of the time is the amount of milliseconds
|
|
// elapsed since the origin which is set by convention to the UNIX/C epoch
|
|
// value: the midnight of January 1, 1970 (UTC)
|
|
wxLongLong m_time;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// This class contains a difference between 2 wxDateTime values, so it makes
|
|
// sense to add it to wxDateTime and it is the result of subtraction of 2
|
|
// objects of that class. See also wxDateSpan.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxTimeSpan
|
|
{
|
|
public:
|
|
// constructors
|
|
// ------------------------------------------------------------------------
|
|
|
|
// return the timespan for the given number of milliseconds
|
|
static wxTimeSpan Milliseconds(wxLongLong ms) { return wxTimeSpan(0, 0, 0, ms); }
|
|
static wxTimeSpan Millisecond() { return Milliseconds(1); }
|
|
|
|
// return the timespan for the given number of seconds
|
|
static wxTimeSpan Seconds(wxLongLong sec) { return wxTimeSpan(0, 0, sec); }
|
|
static wxTimeSpan Second() { return Seconds(1); }
|
|
|
|
// return the timespan for the given number of minutes
|
|
static wxTimeSpan Minutes(long min) { return wxTimeSpan(0, min, 0 ); }
|
|
static wxTimeSpan Minute() { return Minutes(1); }
|
|
|
|
// return the timespan for the given number of hours
|
|
static wxTimeSpan Hours(long hours) { return wxTimeSpan(hours, 0, 0); }
|
|
static wxTimeSpan Hour() { return Hours(1); }
|
|
|
|
// return the timespan for the given number of days
|
|
static wxTimeSpan Days(long days) { return Hours(24 * days); }
|
|
static wxTimeSpan Day() { return Days(1); }
|
|
|
|
// return the timespan for the given number of weeks
|
|
static wxTimeSpan Weeks(long days) { return Days(7 * days); }
|
|
static wxTimeSpan Week() { return Weeks(1); }
|
|
|
|
// default ctor constructs the 0 time span
|
|
wxTimeSpan() { }
|
|
|
|
// from separate values for each component, date set to 0 (hours are
|
|
// not restricted to 0..24 range, neither are minutes, seconds or
|
|
// milliseconds)
|
|
inline wxTimeSpan(long hours,
|
|
long minutes = 0,
|
|
wxLongLong seconds = 0,
|
|
wxLongLong milliseconds = 0);
|
|
|
|
// default copy ctor is ok
|
|
|
|
// no dtor
|
|
|
|
// arithmetics with time spans (see also below for more operators)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// return the sum of two timespans
|
|
inline wxTimeSpan Add(const wxTimeSpan& diff) const;
|
|
// add two timespans together
|
|
inline wxTimeSpan& Add(const wxTimeSpan& diff);
|
|
// add two timespans together
|
|
wxTimeSpan& operator+=(const wxTimeSpan& diff) { return Add(diff); }
|
|
inline wxTimeSpan operator+(const wxTimeSpan& ts) const
|
|
{
|
|
return wxTimeSpan(GetValue() + ts.GetValue());
|
|
}
|
|
|
|
// return the difference of two timespans
|
|
inline wxTimeSpan Subtract(const wxTimeSpan& diff) const;
|
|
// subtract another timespan
|
|
inline wxTimeSpan& Subtract(const wxTimeSpan& diff);
|
|
// subtract another timespan
|
|
wxTimeSpan& operator-=(const wxTimeSpan& diff) { return Subtract(diff); }
|
|
inline wxTimeSpan operator-(const wxTimeSpan& ts) const
|
|
{
|
|
return wxTimeSpan(GetValue() - ts.GetValue());
|
|
}
|
|
|
|
// multiply timespan by a scalar
|
|
inline wxTimeSpan Multiply(int n) const;
|
|
// multiply timespan by a scalar
|
|
inline wxTimeSpan& Multiply(int n);
|
|
// multiply timespan by a scalar
|
|
wxTimeSpan& operator*=(int n) { return Multiply(n); }
|
|
inline wxTimeSpan operator*(int n) const
|
|
{
|
|
return wxTimeSpan(*this).Multiply(n);
|
|
}
|
|
|
|
// return this timespan with opposite sign
|
|
wxTimeSpan Negate() const { return wxTimeSpan(-GetValue()); }
|
|
// negate the value of the timespan
|
|
wxTimeSpan& Neg() { m_diff = -GetValue(); return *this; }
|
|
// negate the value of the timespan
|
|
wxTimeSpan& operator-() { return Neg(); }
|
|
|
|
// return the absolute value of the timespan: does _not_ modify the
|
|
// object
|
|
inline wxTimeSpan Abs() const;
|
|
|
|
// there is intentionally no division because we don't want to
|
|
// introduce rounding errors in time calculations
|
|
|
|
// comparison (see also operator versions below)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// is the timespan null?
|
|
bool IsNull() const { return m_diff == 0l; }
|
|
// returns true if the timespan is null
|
|
bool operator!() const { return !IsNull(); }
|
|
|
|
// is the timespan positive?
|
|
bool IsPositive() const { return m_diff > 0l; }
|
|
|
|
// is the timespan negative?
|
|
bool IsNegative() const { return m_diff < 0l; }
|
|
|
|
// are two timespans equal?
|
|
inline bool IsEqualTo(const wxTimeSpan& ts) const;
|
|
// compare two timestamps: works with the absolute values, i.e. -2
|
|
// hours is longer than 1 hour. Also, it will return false if the
|
|
// timespans are equal in absolute value.
|
|
inline bool IsLongerThan(const wxTimeSpan& ts) const;
|
|
// compare two timestamps: works with the absolute values, i.e. 1
|
|
// hour is shorter than -2 hours. Also, it will return false if the
|
|
// timespans are equal in absolute value.
|
|
bool IsShorterThan(const wxTimeSpan& t) const;
|
|
|
|
inline bool operator<(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() < ts.GetValue();
|
|
}
|
|
|
|
inline bool operator<=(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() <= ts.GetValue();
|
|
}
|
|
|
|
inline bool operator>(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() > ts.GetValue();
|
|
}
|
|
|
|
inline bool operator>=(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() >= ts.GetValue();
|
|
}
|
|
|
|
inline bool operator==(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() == ts.GetValue();
|
|
}
|
|
|
|
inline bool operator!=(const wxTimeSpan &ts) const
|
|
{
|
|
return GetValue() != ts.GetValue();
|
|
}
|
|
|
|
// breaking into days, hours, minutes and seconds
|
|
// ------------------------------------------------------------------------
|
|
|
|
// get the max number of weeks in this timespan
|
|
inline int GetWeeks() const;
|
|
// get the max number of days in this timespan
|
|
inline int GetDays() const;
|
|
// get the max number of hours in this timespan
|
|
inline int GetHours() const;
|
|
// get the max number of minutes in this timespan
|
|
inline int GetMinutes() const;
|
|
// get the max number of seconds in this timespan
|
|
inline wxLongLong GetSeconds() const;
|
|
// get the number of milliseconds in this timespan
|
|
wxLongLong GetMilliseconds() const { return m_diff; }
|
|
|
|
// conversion to text
|
|
// ------------------------------------------------------------------------
|
|
|
|
// this function accepts strftime()-like format string (default
|
|
// argument corresponds to the preferred date and time representation
|
|
// for the current locale) and returns the string containing the
|
|
// resulting text representation. Notice that only some of format
|
|
// specifiers valid for wxDateTime are valid for wxTimeSpan: hours,
|
|
// minutes and seconds make sense, but not "PM/AM" string for example.
|
|
wxString Format(const wxString& format = wxDefaultTimeSpanFormat) const;
|
|
|
|
// implementation
|
|
// ------------------------------------------------------------------------
|
|
|
|
// construct from internal representation
|
|
wxTimeSpan(const wxLongLong& diff) { m_diff = diff; }
|
|
|
|
// get the internal representation
|
|
wxLongLong GetValue() const { return m_diff; }
|
|
|
|
private:
|
|
// the (signed) time span in milliseconds
|
|
wxLongLong m_diff;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// This class is a "logical time span" and is useful for implementing program
|
|
// logic for such things as "add one month to the date" which, in general,
|
|
// doesn't mean to add 60*60*24*31 seconds to it, but to take the same date
|
|
// the next month (to understand that this is indeed different consider adding
|
|
// one month to Feb, 15 - we want to get Mar, 15, of course).
|
|
//
|
|
// When adding a month to the date, all lesser components (days, hours, ...)
|
|
// won't be changed unless the resulting date would be invalid: for example,
|
|
// Jan 31 + 1 month will be Feb 28, not (non existing) Feb 31.
|
|
//
|
|
// Because of this feature, adding and subtracting back again the same
|
|
// wxDateSpan will *not*, in general give back the original date: Feb 28 - 1
|
|
// month will be Jan 28, not Jan 31!
|
|
//
|
|
// wxDateSpan can be either positive or negative. They may be
|
|
// multiplied by scalars which multiply all deltas by the scalar: i.e. 2*(1
|
|
// month and 1 day) is 2 months and 2 days. They can be added together and
|
|
// with wxDateTime or wxTimeSpan, but the type of result is different for each
|
|
// case.
|
|
//
|
|
// Beware about weeks: if you specify both weeks and days, the total number of
|
|
// days added will be 7*weeks + days! See also GetTotalDays() function.
|
|
//
|
|
// Equality operators are defined for wxDateSpans. Two datespans are equal if
|
|
// they both give the same target date when added to *every* source date.
|
|
// Thus wxDateSpan::Months(1) is not equal to wxDateSpan::Days(30), because
|
|
// they not give the same date when added to 1 Feb. But wxDateSpan::Days(14) is
|
|
// equal to wxDateSpan::Weeks(2)
|
|
//
|
|
// Finally, notice that for adding hours, minutes &c you don't need this
|
|
// class: wxTimeSpan will do the job because there are no subtleties
|
|
// associated with those.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_BASE wxDateSpan
|
|
{
|
|
public:
|
|
// constructors
|
|
// ------------------------------------------------------------------------
|
|
|
|
// this many years/months/weeks/days
|
|
wxDateSpan(int years = 0, int months = 0, int weeks = 0, int days = 0)
|
|
{
|
|
m_years = years;
|
|
m_months = months;
|
|
m_weeks = weeks;
|
|
m_days = days;
|
|
}
|
|
|
|
// get an object for the given number of days
|
|
static wxDateSpan Days(int days) { return wxDateSpan(0, 0, 0, days); }
|
|
static wxDateSpan Day() { return Days(1); }
|
|
|
|
// get an object for the given number of weeks
|
|
static wxDateSpan Weeks(int weeks) { return wxDateSpan(0, 0, weeks, 0); }
|
|
static wxDateSpan Week() { return Weeks(1); }
|
|
|
|
// get an object for the given number of months
|
|
static wxDateSpan Months(int mon) { return wxDateSpan(0, mon, 0, 0); }
|
|
static wxDateSpan Month() { return Months(1); }
|
|
|
|
// get an object for the given number of years
|
|
static wxDateSpan Years(int years) { return wxDateSpan(years, 0, 0, 0); }
|
|
static wxDateSpan Year() { return Years(1); }
|
|
|
|
// default copy ctor is ok
|
|
|
|
// no dtor
|
|
|
|
// accessors (all SetXXX() return the (modified) wxDateSpan object)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// set number of years
|
|
wxDateSpan& SetYears(int n) { m_years = n; return *this; }
|
|
// set number of months
|
|
wxDateSpan& SetMonths(int n) { m_months = n; return *this; }
|
|
// set number of weeks
|
|
wxDateSpan& SetWeeks(int n) { m_weeks = n; return *this; }
|
|
// set number of days
|
|
wxDateSpan& SetDays(int n) { m_days = n; return *this; }
|
|
|
|
// get number of years
|
|
int GetYears() const { return m_years; }
|
|
// get number of months
|
|
int GetMonths() const { return m_months; }
|
|
// returns 12*GetYears() + GetMonths()
|
|
int GetTotalMonths() const { return 12*m_years + m_months; }
|
|
// get number of weeks
|
|
int GetWeeks() const { return m_weeks; }
|
|
// get number of days
|
|
int GetDays() const { return m_days; }
|
|
// returns 7*GetWeeks() + GetDays()
|
|
int GetTotalDays() const { return 7*m_weeks + m_days; }
|
|
|
|
// arithmetics with date spans (see also below for more operators)
|
|
// ------------------------------------------------------------------------
|
|
|
|
// return sum of two date spans
|
|
inline wxDateSpan Add(const wxDateSpan& other) const;
|
|
// add another wxDateSpan to us
|
|
inline wxDateSpan& Add(const wxDateSpan& other);
|
|
// add another wxDateSpan to us
|
|
inline wxDateSpan& operator+=(const wxDateSpan& other);
|
|
inline wxDateSpan operator+(const wxDateSpan& ds) const
|
|
{
|
|
return wxDateSpan(GetYears() + ds.GetYears(),
|
|
GetMonths() + ds.GetMonths(),
|
|
GetWeeks() + ds.GetWeeks(),
|
|
GetDays() + ds.GetDays());
|
|
}
|
|
|
|
// return difference of two date spans
|
|
inline wxDateSpan Subtract(const wxDateSpan& other) const;
|
|
// subtract another wxDateSpan from us
|
|
inline wxDateSpan& Subtract(const wxDateSpan& other);
|
|
// subtract another wxDateSpan from us
|
|
inline wxDateSpan& operator-=(const wxDateSpan& other);
|
|
inline wxDateSpan operator-(const wxDateSpan& ds) const
|
|
{
|
|
return wxDateSpan(GetYears() - ds.GetYears(),
|
|
GetMonths() - ds.GetMonths(),
|
|
GetWeeks() - ds.GetWeeks(),
|
|
GetDays() - ds.GetDays());
|
|
}
|
|
|
|
// return a copy of this time span with changed sign
|
|
inline wxDateSpan Negate() const;
|
|
// inverse the sign of this timespan
|
|
inline wxDateSpan& Neg();
|
|
// inverse the sign of this timespan
|
|
wxDateSpan& operator-() { return Neg(); }
|
|
|
|
// return the date span proportional to this one with given factor
|
|
inline wxDateSpan Multiply(int factor) const;
|
|
// multiply all components by a (signed) number
|
|
inline wxDateSpan& Multiply(int factor);
|
|
// multiply all components by a (signed) number
|
|
inline wxDateSpan& operator*=(int factor) { return Multiply(factor); }
|
|
inline wxDateSpan operator*(int n) const
|
|
{
|
|
return wxDateSpan(*this).Multiply(n);
|
|
}
|
|
|
|
// ds1 == d2 if and only if for every wxDateTime t t + ds1 == t + ds2
|
|
inline bool operator==(const wxDateSpan& ds) const
|
|
{
|
|
return GetYears() == ds.GetYears() &&
|
|
GetMonths() == ds.GetMonths() &&
|
|
GetTotalDays() == ds.GetTotalDays();
|
|
}
|
|
|
|
inline bool operator!=(const wxDateSpan& ds) const
|
|
{
|
|
return !(*this == ds);
|
|
}
|
|
|
|
private:
|
|
int m_years,
|
|
m_months,
|
|
m_weeks,
|
|
m_days;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTimeArray: array of dates.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
WX_DECLARE_USER_EXPORTED_OBJARRAY(wxDateTime, wxDateTimeArray, WXDLLIMPEXP_BASE);
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTimeHolidayAuthority: an object of this class will decide whether a
|
|
// given date is a holiday and is used by all functions working with "work
|
|
// days".
|
|
//
|
|
// NB: the base class is an ABC, derived classes must implement the pure
|
|
// virtual methods to work with the holidays they correspond to.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_FWD_BASE wxDateTimeHolidayAuthority;
|
|
WX_DEFINE_USER_EXPORTED_ARRAY_PTR(wxDateTimeHolidayAuthority *,
|
|
wxHolidayAuthoritiesArray,
|
|
class WXDLLIMPEXP_BASE);
|
|
|
|
class wxDateTimeHolidaysModule;
|
|
class WXDLLIMPEXP_BASE wxDateTimeHolidayAuthority
|
|
{
|
|
friend class wxDateTimeHolidaysModule;
|
|
public:
|
|
// returns true if the given date is a holiday
|
|
static bool IsHoliday(const wxDateTime& dt);
|
|
|
|
// fills the provided array with all holidays in the given range, returns
|
|
// the number of them
|
|
static size_t GetHolidaysInRange(const wxDateTime& dtStart,
|
|
const wxDateTime& dtEnd,
|
|
wxDateTimeArray& holidays);
|
|
|
|
// clear the list of holiday authorities
|
|
static void ClearAllAuthorities();
|
|
|
|
// add a new holiday authority (the pointer will be deleted by
|
|
// wxDateTimeHolidayAuthority)
|
|
static void AddAuthority(wxDateTimeHolidayAuthority *auth);
|
|
|
|
// the base class must have a virtual dtor
|
|
virtual ~wxDateTimeHolidayAuthority();
|
|
|
|
protected:
|
|
// this function is called to determine whether a given day is a holiday
|
|
virtual bool DoIsHoliday(const wxDateTime& dt) const = 0;
|
|
|
|
// this function should fill the array with all holidays between the two
|
|
// given dates - it is implemented in the base class, but in a very
|
|
// inefficient way (it just iterates over all days and uses IsHoliday() for
|
|
// each of them), so it must be overridden in the derived class where the
|
|
// base class version may be explicitly used if needed
|
|
//
|
|
// returns the number of holidays in the given range and fills holidays
|
|
// array
|
|
virtual size_t DoGetHolidaysInRange(const wxDateTime& dtStart,
|
|
const wxDateTime& dtEnd,
|
|
wxDateTimeArray& holidays) const = 0;
|
|
|
|
private:
|
|
// all holiday authorities
|
|
static wxHolidayAuthoritiesArray ms_authorities;
|
|
};
|
|
|
|
// the holidays for this class are all Saturdays and Sundays
|
|
class WXDLLIMPEXP_BASE wxDateTimeWorkDays : public wxDateTimeHolidayAuthority
|
|
{
|
|
protected:
|
|
virtual bool DoIsHoliday(const wxDateTime& dt) const wxOVERRIDE;
|
|
virtual size_t DoGetHolidaysInRange(const wxDateTime& dtStart,
|
|
const wxDateTime& dtEnd,
|
|
wxDateTimeArray& holidays) const wxOVERRIDE;
|
|
};
|
|
|
|
// ============================================================================
|
|
// inline functions implementation
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// private macros
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#define MILLISECONDS_PER_DAY 86400000l
|
|
|
|
// some broken compilers (HP-UX CC) refuse to compile the "normal" version, but
|
|
// using a temp variable always might prevent other compilers from optimising
|
|
// it away - hence use of this ugly macro
|
|
#ifndef __HPUX__
|
|
#define MODIFY_AND_RETURN(op) return wxDateTime(*this).op
|
|
#else
|
|
#define MODIFY_AND_RETURN(op) wxDateTime dt(*this); dt.op; return dt
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime construction
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline bool wxDateTime::IsInStdRange() const
|
|
{
|
|
// currently we don't know what is the real type of time_t so prefer to err
|
|
// on the safe side and limit it to 32 bit values which is safe everywhere
|
|
return m_time >= 0l && (m_time / TIME_T_FACTOR) < wxINT32_MAX;
|
|
}
|
|
|
|
/* static */
|
|
inline wxDateTime wxDateTime::Now()
|
|
{
|
|
struct tm tmstruct;
|
|
return wxDateTime(*GetTmNow(&tmstruct));
|
|
}
|
|
|
|
/* static */
|
|
inline wxDateTime wxDateTime::Today()
|
|
{
|
|
wxDateTime dt(Now());
|
|
dt.ResetTime();
|
|
|
|
return dt;
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::Set(time_t timet)
|
|
{
|
|
if ( timet == (time_t)-1 )
|
|
{
|
|
m_time = wxInvalidDateTime.m_time;
|
|
}
|
|
else
|
|
{
|
|
// assign first to avoid long multiplication overflow!
|
|
m_time = timet - WX_TIME_BASE_OFFSET;
|
|
m_time *= TIME_T_FACTOR;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::SetToCurrent()
|
|
{
|
|
*this = Now();
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(time_t timet)
|
|
{
|
|
Set(timet);
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(const struct tm& tm)
|
|
{
|
|
Set(tm);
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(const Tm& tm)
|
|
{
|
|
Set(tm);
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(double jdn)
|
|
{
|
|
Set(jdn);
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::Set(const Tm& tm)
|
|
{
|
|
wxASSERT_MSG( tm.IsValid(), wxT("invalid broken down date/time") );
|
|
|
|
return Set(tm.mday, (Month)tm.mon, tm.year,
|
|
tm.hour, tm.min, tm.sec, tm.msec);
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(wxDateTime_t hour,
|
|
wxDateTime_t minute,
|
|
wxDateTime_t second,
|
|
wxDateTime_t millisec)
|
|
{
|
|
Set(hour, minute, second, millisec);
|
|
}
|
|
|
|
inline wxDateTime::wxDateTime(wxDateTime_t day,
|
|
Month month,
|
|
int year,
|
|
wxDateTime_t hour,
|
|
wxDateTime_t minute,
|
|
wxDateTime_t second,
|
|
wxDateTime_t millisec)
|
|
{
|
|
Set(day, month, year, hour, minute, second, millisec);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime accessors
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxLongLong wxDateTime::GetValue() const
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
return m_time;
|
|
}
|
|
|
|
inline time_t wxDateTime::GetTicks() const
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
if ( !IsInStdRange() )
|
|
{
|
|
return (time_t)-1;
|
|
}
|
|
|
|
return (time_t)((m_time / (long)TIME_T_FACTOR).ToLong()) + WX_TIME_BASE_OFFSET;
|
|
}
|
|
|
|
inline bool wxDateTime::SetToLastWeekDay(WeekDay weekday,
|
|
Month month,
|
|
int year)
|
|
{
|
|
return SetToWeekDay(weekday, -1, month, year);
|
|
}
|
|
|
|
inline wxDateTime
|
|
wxDateTime::GetWeekDayInSameWeek(WeekDay weekday,
|
|
WeekFlags WXUNUSED(flags)) const
|
|
{
|
|
MODIFY_AND_RETURN( SetToWeekDayInSameWeek(weekday) );
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetNextWeekDay(WeekDay weekday) const
|
|
{
|
|
MODIFY_AND_RETURN( SetToNextWeekDay(weekday) );
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetPrevWeekDay(WeekDay weekday) const
|
|
{
|
|
MODIFY_AND_RETURN( SetToPrevWeekDay(weekday) );
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetWeekDay(WeekDay weekday,
|
|
int n,
|
|
Month month,
|
|
int year) const
|
|
{
|
|
wxDateTime dt(*this);
|
|
|
|
return dt.SetToWeekDay(weekday, n, month, year) ? dt : wxInvalidDateTime;
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetLastWeekDay(WeekDay weekday,
|
|
Month month,
|
|
int year)
|
|
{
|
|
wxDateTime dt(*this);
|
|
|
|
return dt.SetToLastWeekDay(weekday, month, year) ? dt : wxInvalidDateTime;
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetLastMonthDay(Month month, int year) const
|
|
{
|
|
MODIFY_AND_RETURN( SetToLastMonthDay(month, year) );
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const
|
|
{
|
|
MODIFY_AND_RETURN( SetToYearDay(yday) );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime comparison
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const
|
|
{
|
|
return *this == datetime;
|
|
}
|
|
|
|
inline bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const
|
|
{
|
|
return *this < datetime;
|
|
}
|
|
|
|
inline bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const
|
|
{
|
|
return *this > datetime;
|
|
}
|
|
|
|
inline bool wxDateTime::IsStrictlyBetween(const wxDateTime& t1,
|
|
const wxDateTime& t2) const
|
|
{
|
|
// no need for assert, will be checked by the functions we call
|
|
return IsLaterThan(t1) && IsEarlierThan(t2);
|
|
}
|
|
|
|
inline bool wxDateTime::IsBetween(const wxDateTime& t1,
|
|
const wxDateTime& t2) const
|
|
{
|
|
// no need for assert, will be checked by the functions we call
|
|
return IsEqualTo(t1) || IsEqualTo(t2) || IsStrictlyBetween(t1, t2);
|
|
}
|
|
|
|
inline bool wxDateTime::IsSameDate(const wxDateTime& dt) const
|
|
{
|
|
Tm tm1 = GetTm(),
|
|
tm2 = dt.GetTm();
|
|
|
|
return tm1.year == tm2.year &&
|
|
tm1.mon == tm2.mon &&
|
|
tm1.mday == tm2.mday;
|
|
}
|
|
|
|
inline bool wxDateTime::IsSameTime(const wxDateTime& dt) const
|
|
{
|
|
// notice that we can't do something like this:
|
|
//
|
|
// m_time % MILLISECONDS_PER_DAY == dt.m_time % MILLISECONDS_PER_DAY
|
|
//
|
|
// because we have also to deal with (possibly) different DST settings!
|
|
Tm tm1 = GetTm(),
|
|
tm2 = dt.GetTm();
|
|
|
|
return tm1.hour == tm2.hour &&
|
|
tm1.min == tm2.min &&
|
|
tm1.sec == tm2.sec &&
|
|
tm1.msec == tm2.msec;
|
|
}
|
|
|
|
inline bool wxDateTime::IsEqualUpTo(const wxDateTime& dt,
|
|
const wxTimeSpan& ts) const
|
|
{
|
|
return IsBetween(dt.Subtract(ts), dt.Add(ts));
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime arithmetics
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
return wxDateTime(m_time + diff.GetValue());
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::Add(const wxTimeSpan& diff)
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
m_time += diff.GetValue();
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff)
|
|
{
|
|
return Add(diff);
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::Subtract(const wxTimeSpan& diff) const
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
return wxDateTime(m_time - diff.GetValue());
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::Subtract(const wxTimeSpan& diff)
|
|
{
|
|
wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
m_time -= diff.GetValue();
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff)
|
|
{
|
|
return Subtract(diff);
|
|
}
|
|
|
|
inline wxTimeSpan wxDateTime::Subtract(const wxDateTime& datetime) const
|
|
{
|
|
wxASSERT_MSG( IsValid() && datetime.IsValid(), wxT("invalid wxDateTime"));
|
|
|
|
return wxTimeSpan(GetValue() - datetime.GetValue());
|
|
}
|
|
|
|
inline wxTimeSpan wxDateTime::operator-(const wxDateTime& dt2) const
|
|
{
|
|
return this->Subtract(dt2);
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::Add(const wxDateSpan& diff) const
|
|
{
|
|
return wxDateTime(*this).Add(diff);
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::Subtract(const wxDateSpan& diff)
|
|
{
|
|
return Add(diff.Negate());
|
|
}
|
|
|
|
inline wxDateTime wxDateTime::Subtract(const wxDateSpan& diff) const
|
|
{
|
|
return wxDateTime(*this).Subtract(diff);
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::operator-=(const wxDateSpan& diff)
|
|
{
|
|
return Subtract(diff);
|
|
}
|
|
|
|
inline wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff)
|
|
{
|
|
return Add(diff);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateTime and timezones
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxDateTime
|
|
wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz, bool noDST) const
|
|
{
|
|
MODIFY_AND_RETURN( MakeTimezone(tz, noDST) );
|
|
}
|
|
|
|
inline wxDateTime
|
|
wxDateTime::FromTimezone(const wxDateTime::TimeZone& tz, bool noDST) const
|
|
{
|
|
MODIFY_AND_RETURN( MakeFromTimezone(tz, noDST) );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTimeSpan construction
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxTimeSpan::wxTimeSpan(long hours,
|
|
long minutes,
|
|
wxLongLong seconds,
|
|
wxLongLong milliseconds)
|
|
{
|
|
// assign first to avoid precision loss
|
|
m_diff = hours;
|
|
m_diff *= 60l;
|
|
m_diff += minutes;
|
|
m_diff *= 60l;
|
|
m_diff += seconds;
|
|
m_diff *= 1000l;
|
|
m_diff += milliseconds;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTimeSpan accessors
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxLongLong wxTimeSpan::GetSeconds() const
|
|
{
|
|
return m_diff / 1000l;
|
|
}
|
|
|
|
inline int wxTimeSpan::GetMinutes() const
|
|
{
|
|
// For compatibility, this method (and the other accessors) return int,
|
|
// even though GetLo() actually returns unsigned long with greater range.
|
|
return static_cast<int>((GetSeconds() / 60l).GetLo());
|
|
}
|
|
|
|
inline int wxTimeSpan::GetHours() const
|
|
{
|
|
return GetMinutes() / 60;
|
|
}
|
|
|
|
inline int wxTimeSpan::GetDays() const
|
|
{
|
|
return GetHours() / 24;
|
|
}
|
|
|
|
inline int wxTimeSpan::GetWeeks() const
|
|
{
|
|
return GetDays() / 7;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTimeSpan arithmetics
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxTimeSpan wxTimeSpan::Add(const wxTimeSpan& diff) const
|
|
{
|
|
return wxTimeSpan(m_diff + diff.GetValue());
|
|
}
|
|
|
|
inline wxTimeSpan& wxTimeSpan::Add(const wxTimeSpan& diff)
|
|
{
|
|
m_diff += diff.GetValue();
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxTimeSpan wxTimeSpan::Subtract(const wxTimeSpan& diff) const
|
|
{
|
|
return wxTimeSpan(m_diff - diff.GetValue());
|
|
}
|
|
|
|
inline wxTimeSpan& wxTimeSpan::Subtract(const wxTimeSpan& diff)
|
|
{
|
|
m_diff -= diff.GetValue();
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxTimeSpan& wxTimeSpan::Multiply(int n)
|
|
{
|
|
m_diff *= (long)n;
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxTimeSpan wxTimeSpan::Multiply(int n) const
|
|
{
|
|
return wxTimeSpan(m_diff * (long)n);
|
|
}
|
|
|
|
inline wxTimeSpan wxTimeSpan::Abs() const
|
|
{
|
|
return wxTimeSpan(GetValue().Abs());
|
|
}
|
|
|
|
inline bool wxTimeSpan::IsEqualTo(const wxTimeSpan& ts) const
|
|
{
|
|
return GetValue() == ts.GetValue();
|
|
}
|
|
|
|
inline bool wxTimeSpan::IsLongerThan(const wxTimeSpan& ts) const
|
|
{
|
|
return GetValue().Abs() > ts.GetValue().Abs();
|
|
}
|
|
|
|
inline bool wxTimeSpan::IsShorterThan(const wxTimeSpan& ts) const
|
|
{
|
|
return GetValue().Abs() < ts.GetValue().Abs();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateSpan
|
|
// ----------------------------------------------------------------------------
|
|
|
|
inline wxDateSpan& wxDateSpan::operator+=(const wxDateSpan& other)
|
|
{
|
|
m_years += other.m_years;
|
|
m_months += other.m_months;
|
|
m_weeks += other.m_weeks;
|
|
m_days += other.m_days;
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateSpan& wxDateSpan::Add(const wxDateSpan& other)
|
|
{
|
|
return *this += other;
|
|
}
|
|
|
|
inline wxDateSpan wxDateSpan::Add(const wxDateSpan& other) const
|
|
{
|
|
wxDateSpan ds(*this);
|
|
ds.Add(other);
|
|
return ds;
|
|
}
|
|
|
|
inline wxDateSpan& wxDateSpan::Multiply(int factor)
|
|
{
|
|
m_years *= factor;
|
|
m_months *= factor;
|
|
m_weeks *= factor;
|
|
m_days *= factor;
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateSpan wxDateSpan::Multiply(int factor) const
|
|
{
|
|
wxDateSpan ds(*this);
|
|
ds.Multiply(factor);
|
|
return ds;
|
|
}
|
|
|
|
inline wxDateSpan wxDateSpan::Negate() const
|
|
{
|
|
return wxDateSpan(-m_years, -m_months, -m_weeks, -m_days);
|
|
}
|
|
|
|
inline wxDateSpan& wxDateSpan::Neg()
|
|
{
|
|
m_years = -m_years;
|
|
m_months = -m_months;
|
|
m_weeks = -m_weeks;
|
|
m_days = -m_days;
|
|
|
|
return *this;
|
|
}
|
|
|
|
inline wxDateSpan& wxDateSpan::operator-=(const wxDateSpan& other)
|
|
{
|
|
return *this += other.Negate();
|
|
}
|
|
|
|
inline wxDateSpan& wxDateSpan::Subtract(const wxDateSpan& other)
|
|
{
|
|
return *this -= other;
|
|
}
|
|
|
|
inline wxDateSpan wxDateSpan::Subtract(const wxDateSpan& other) const
|
|
{
|
|
wxDateSpan ds(*this);
|
|
ds.Subtract(other);
|
|
return ds;
|
|
}
|
|
|
|
#undef MILLISECONDS_PER_DAY
|
|
|
|
#undef MODIFY_AND_RETURN
|
|
|
|
// ============================================================================
|
|
// binary operators
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTimeSpan operators
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts);
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDateSpan
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds);
|
|
|
|
// ============================================================================
|
|
// other helper functions
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// iteration helpers: can be used to write a for loop over enum variable like
|
|
// this:
|
|
// for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
|
|
// ----------------------------------------------------------------------------
|
|
|
|
WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m);
|
|
WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m);
|
|
WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd);
|
|
WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd);
|
|
|
|
#endif // wxUSE_DATETIME
|
|
|
|
#endif // _WX_DATETIME_H
|